
Ross Lake
Ross Lake is a large reservoir in the North Cascade mountains of northern Washington state, United States, and southwestern British Columbia, Canada. The lake runs approximately north-south, is 23 miles (37 km) long, up to 1.5 miles (2.5 km) wide, and the full reservoir elevation is 1,604 feet above sea level (489 m). The U.S. portion of Ross Lake is in the Ross Lake National Recreation Area. North Cascades National Park is adjacent to the west and south, while the Pasayten Wilderness is east of the lake. In British Columbia the lake is a part of Skagit Valley Provincial Park, and Manning Provincial Park is nearby to the east.
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Ross Lake
Ross Lake is a large reservoir in the North Cascade mountains of northern Washington state, United States, and southwestern British Columbia, Canada. The lake runs approximately north-south, is 23 miles (37 km) long, up to 1.5 miles (2.5 km) wide, and the full reservoir elevation is 1,604 feet above sea level (489 m). The U.S. portion of Ross Lake is in the Ross Lake National Recreation Area. North Cascades National Park is adjacent to the west and south, while the Pasayten Wilderness is east of the lake. In British Columbia the lake is a part of Skagit Valley Provincial Park, and Manning Provincial Park is nearby to the east.
Read more detailsCurrent Conditions
Water Temperature
Current Snapshot
Forecast: Thursday, May 8
PartlyCloudy
Hourly Insights
Temperature
Precipitation
Wind
Sun, Moon & UV
Solunar Fishing Forecast
Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)
7:00 AM - 7:00 AM
12:30 PM - 3:00 PM
11:15 PM - 12:45 AM
10:28 AM - 11:58 AM
Outlook for Thursday at Ross Lake
Expect temperatures ranging from 33°F to 53°F. Skies look partly cloudy with little chance of precipitation. Winds will be averaging 2 mph, with potential gusts reaching up to 19 mph. The maximum UV index will be 5 (Moderate), so plan sun protection accordingly. For anglers, today's fishing action is rated 2/5 (Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 7:00 AM and 12:30 PM, or try the minor windows near 11:15 PM and 10:28 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Ross Lake.
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Lake Information
Common Fish Species
Nearby Lakes
Water Temperature History
Trends for Ross Lake
Current Temp
Latest recorded surface temperature.
Lowest in Period
32°F
On Mar 23
Coldest point in the Last 12 Months.
Average in Period
46°F
Typical temp during the Last 12 Months.
Temperature Trend: Last 12 Months
Surface temperature over the selected period.
Key Observations (Last 12 Months)
- Warmest avg: July (69°F).
- Coolest avg: March (36°F).
- Rapid warming often occurs: June → July (+14°F).
- Sharpest cooling trend: September → October (-8°F).
Weather Forecast
Wind speed and pressure trends
Hourly Wind Forecast
Wind Direction
261°
Pressure
1019 mb
Cloud Cover
51%
Visibility
12 miles
Daily Pressure Forecast


Frequently Asked Questions About Ross Lake
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